Humber Admissions Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Humber Admissions Test with comprehensive quizzes. Test your knowledge with multiple choice questions and insightful explanations. Boost your confidence and readiness for exam day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which nitrogen base pairs with Adenine in RNA?

Cytosine
Thymine
Uracil
Guanine

The correct answer is: Uracil

In RNA, Adenine pairs with Uracil instead of Thymine, which is found in DNA. This is a fundamental aspect of RNA structure and function. Uracil serves a similar role to Thymine; both are pyrimidine bases that form complementary pairs with purine bases. In RNA, the pairing follows the rules of nucleotide pairing where Adenine, being a purine, can form two hydrogen bonds with Uracil. This interaction is crucial for the stability and functionality of RNA molecules, which play various roles in the cell, including acting as a messenger molecule (mRNA), participating in protein synthesis (tRNA and rRNA), and catalyzing biochemical reactions (ribozymes). Understanding this pairing is essential for grasping the basics of nucleic acid structure and function in molecular biology.